[Zigo Zago]

I always do this for concerts.
I use a cam and an H4n.
Then I sync using the original track and the H4n stereo track.
When synced, I delete the cam audio track and render the video.
No sync problems, but better to record audio at 48 kHz
Here you find some examples:

http://www.vimeo.com/15755522
http://www.youtube.com/watch?v=uwUnflx3vR4



Diego